nVent ASR0403021 - Single Door Enclosure, ASR, 400x300x210mm, Brushed, Stainless 304
nVent

ASR0403021

UPC: 783510450328


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Installation Instructions

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Overview

The nVent ASR series single door wall-mounted enclosure (SKU: ASR0403021) is a premium-grade stainless steel solution designed to protect critical electrical and electronic components in demanding industrial environments. Engineered with 304-grade brushed stainless steel, this enclosure delivers exceptional durability, corrosion resistance, and a sleek aesthetic suitable for cleanroom, food & beverage, pharmaceutical, and other hygienic-sensitive applications. With an IP66 ingress protection rating, the ASR0403021 ensures complete protection against dust ingress and powerful water jets, making it ideal for washdown environments, outdoor installations, or areas with high humidity and particulate exposure. Key features of the nVent ASR series include a single hinged door with a secure latch mechanism, ensuring easy access for maintenance while maintaining robust protection. The enclosure’s dimensions (400x300x210mm) provide ample internal space for housing control panels, PLCs, drives, or other sensitive equipment, while the brushed stainless steel finish resists fingerprints, stains, and corrosion—critical for industries where cleanliness and appearance are paramount. nVent’s ASR series is available off-the-shelf in multiple sizes, allowing for quick deployment and minimizing lead times for critical projects. Industries such as food and beverage, pharmaceuticals, chemical processing, and water/wastewater treatment rely on the ASR series to safeguard sensitive electronics from contamination, moisture, and mechanical damage. The IP66 rating ensures compliance with stringent hygiene and safety standards, including FDA, USDA, and GMP guidelines, while the stainless steel construction meets NSF/ANSI 51 and 3-A Sanitary Standards for food-grade applications. For outdoor or corrosive environments, the ASR series provides unmatched longevity, reducing the risk of component failure and costly downtime. Installation is straightforward, with pre-drilled mounting holes for secure wall attachment and optional gland plates for cable entry management. nVent’s reputation for engineering reliable, high-performance enclosures is backed by decades of innovation in thermal management, material science, and industrial protection solutions. Whether deployed in a food processing plant, a pharmaceutical cleanroom, or a harsh outdoor industrial site, the ASR0403021 delivers the performance, durability, and compliance required for mission-critical applications. Trust nVent to protect your most valuable assets with a solution built to last.
  • Material: AISI 304L / AISI 316L pre-grained stainless steel. Body: 1.5 mm. Door for AISI 304L: 1.5 mm / 2 mm for enclosures with a height or width of 600 mm or greater. Door for AISI 316L: 2 mm. Mounting plate: 2 mm galvanized steel.
  • Body: Folded and seam welded. For ease of installation, each back corner of the enclosure is laser-marked to precisely indicate where to drill holes and affix AWS wall mounting brackets.
  • Door: Corner formed in one piece. Surface mounted, with 130° opening. Concealed AISI 304 stainless steel hinges with captive pin. Can be mounted to allow left or right hand opening. Sealing is ensured by an injected polyurethane gasket. For AISI 316L, sea
  • Lock: nVent HOFFMAN customized zamak double-bit 3 mm lock, with 90° movement and anti-vibration mechanism. Two locks for 600 mm high to 800 mm high enclosures. Espagnolette three point locking or 3 locks for 1000 mm high enclosures and above. Stainless st
  • Mounting plate: The mounting plate is marked vertically at 10 mm intervals, for easy horizontal positioning of equipment. On the top and bottom there are holes to facilitate cable fixing. Fixed onto M8 press welded studs to the rear of the enclosure. All
  • Cable access: No gland plate openings as standard, to maximise sealing and cleanliness.
  • Protection: Corresponds with IP 66, TYPE 4X, 12, IK 10.
  • Finish: 400 pre-grained stainless steel.
  • Delivery: Enclosure with door, mounting plate, plastic double-bit 3 mm key, and mounting accessories. Metallic key, for height 1000 mm and above.
  • Additional information: For outdoor environments, exposed to precipitation, the use of a rain hood is advised. Also in environments known for quick temperature changes, consideration to condensation should be taken. Please see the thermal management secti

Specifications

Application
Hazardous Environments; Corrosive Environments; Factory Automation and Process Control
Body Thickness
16 ga
Body Thickness
1.5 mm
Cable Entry
No
Color
Unpainted
Connection
No
Construction
Body: 16 gauge Door: 16 gauge
Cubic Capacity
1538 Cu-in
Depth
210 mm
Depth
8.27 in
Door Thickness
1.5 mm
Door Thickness
16 ga
Finish
Brushed
Height
400 mm
Height
15.75 in
Insulation
No
Knockouts
No
Latch Quantity
1
Material
Stainless Steel 304
Max Mounting Depth
7.55 in
Max Mounting Depth
192 mm
Mounting
Wall Mounted
Number Of Outlet
1
Protection Rating
NEMA Type 12
Size
15.75 x 11.81 x 8.27 inch
Type
Stainless Steel Wall Mounted Industrial Enclosures
Weight
15.45 lb
Weight
7 kg
Width
300 mm
Width
11.81 in
Package Dimensions (L x W x H)
16.12 IN x 12.19 IN x 8.89 IN
Package Dimensions (L x W x H)
40.9448 cm x 30.9626 cm x 22.5806 cm
Package Weight (Imperial)
15.450 L
Package Weight (Metric)
7.008 kg
Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum

14A0705

Panel 6.9 x 4.9 - Fits Encl. 8 x 6 - Alum
Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.

BX4

Sealable and transparent protective covers BX4 and non-removable BX4-CA to protect the devices against accidental contact.
Escutcheon black type B for Sircover 125-630A

44095015

Escutcheon black type B for Sircover 125-630A
Escutcheon black type B for Sircover 125-630A IP65

44095016

Escutcheon black type B for Sircover 125-630A IP65
1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey

LT20D-NEW

1/2 Inch, 90 Degree, Two-Piece Liquidtight Non-Metallic Fitting, UL E32447, Temperatures up to 107 Degrees C, Nitril Rubber O-Ring, PVC, Grey
1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey

LN43DA

1/2 Inch, Straight, One-Piece Liquidtight Non-Metallic Fitting, CSA, UL E32447, Temperatures up to 60 Degrees C, PVC, Grey
Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black

LH38

Cord Grip with NPT Threads, Locknut Included, NPT Thread Size 3/8 Inch, Cable Range 0.181 Inch/4.6mm to 0.312 Inch/7.9mm, Hole Clearance 0.670 Inch/17.0mm, Thread Length 0.53 Inch/13.5mm, IP68 Rating, Nylon, Black
EP-RJG-M20-BL-A

1SNG618003R0000

EP-RJG-M20-BL-A
5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55

FF12D24NN53

5,90" x 5,90" filter fan - 24Vdc - 20.6 cfm - RAL 9005 - Type 3R - IP55
12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12

FF20A115UE1

12,80" x 12,80" filter fan - 115Vac - 285.3 cfm - RAL 7035 - Type 12

How to Install the ASR0403021 Controller

This guide provides step-by-step instructions for mounting, wiring, and configuring the ASR0403021 Controller.

Estimated time: 45m

Tools needed:

Screwdriver, Wire strippers, Multimeter

Supplies needed:

Mounting screws, Terminal connectors

  1. Mount the controller

    Secure the ASR0403021 controller to the DIN rail using the integrated clips. Ensure the controller is level and firmly attached.

  2. Connect the power supply

    Using terminal connectors, connect the power supply wires to the designated input terminals on the controller. Verify that the connections are secure.

  3. Configure the controller settings

    Power on the controller and use the configuration interface to set the desired operational parameters. Refer to the user manual for specific configuration options.

  4. Calibrate the controller

    Perform a calibration check by following the calibration procedure outlined in the user manual. Ensure all readings are within acceptable ranges.

Frequently Asked Questions about nVent

What industries and applications are nVent products used for?

nVent products are engineered for critical infrastructure and industrial applications across multiple demanding sectors. Key markets include Construction, Data Centers, Defense, Healthcare, Mining, Oil & Gas Refineries, Power Plants, Rail/Transit, Renewable Energy, Security, Ship Building, Steel Mills, Telecom, and Utilities. Their solutions are designed to withstand extreme environmental conditions, with temperature ranges from -55°C to 105°C and specialized features like UV resistance, oil resistance, and flame resistance.

What environmental ratings do nVent products have?

nVent enclosures feature comprehensive environmental ratings, including UL 508A, CSA, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13 certifications. They are rated IEC 60529 IP66, providing robust protection against dust, water, and corrosion in both indoor and outdoor environments. These products operate effectively in temperatures ranging from -40°F to 266°F, with enhanced UV inhibitors for outdoor weathering and oil-resistant gaskets for superior sealing.

What accessories are available for nVent products?

nVent offers a comprehensive range of accessories across multiple product lines, including EMC accessories like bonding cable clamps and strain reliefs, inline accessories such as lock inserts and mounting brackets, CONCEPT accessories including panel conversion kits and rack-mount angles, and seismic accessories for specialized mounting requirements. Key accessory categories include grounding kits, DIN rail mounting solutions, panel supports, handles, and various mounting hardware compatible with different enclosure types.

What certifications and standards do nVent products comply with?

nVent products meet critical international certifications including UL (United States), CSA (Canada), CE (European Community), and EAC (Russia). Our products are designed to comply with rigorous industrial standards such as NEMA enclosure ratings, IEC 60529 IP ratings, and international safety standards across multiple industrial markets including oil & gas, power, manufacturing, and infrastructure.

What is nVent's warranty policy?

nVent offers a standard 18-month warranty from invoicing date for most automation products, covering defects in workmanship and materials. The warranty requires proper transportation, handling, storage, and installation within specified environmental conditions. Warranty coverage includes repair or replacement at nVent's discretion, with certain conditions such as authorized service repairs and operation within designed capacity limits.

What technical support does nVent offer?

nVent offers comprehensive technical support through multiple global contact centers across North America, South America, Europe, Middle East, India, and Asia. Customers can reach technical experts by phone at regional numbers, with the North American headquarters in Minneapolis, MN providing primary support at +1.763.421.2240. Additionally, nVent provides online support resources through their website, including CAD drawing downloads and an 'Ask The Expert' feature to assist with product technical inquiries.